GENEVA, Oct. 18 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North Street,Dongcheng District, Beijing 100007), 中国石油天然气股份有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2024/138975) for "MODIFIED ACTIVATED CARBON AND PREPARATION METHOD THEREFOR, AND CATALYST AND USE THEREOF" on Dec 12, 2024. With publication no. WO/2025/213824, the details related to the patent application was published on Oct 16, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World In...